linux/arch/arm64
Peter Ujfalusi ed3aad5b82 arm64: dts: ti: j721e-common-proc-board: Analog audio support
The codec is wired in multi DIN/DOUT setup (DIN1/2/3/4/DOUT1/2/3 is
connected to McASP serializer).

To support wide range of audio features a generic sound card can not be
used since we need to use different reference clock source for 44.1 and
48 KHz family of sampling rates.
Depending on the sample size we also need to use different slot width to
be able to support 16 and 24 bits.

There are couple of notable difference compared to DIN1/DOUT1 mode:
the channel mapping is 'random' for first look compared to the single
serializer setup:
        _      _      _
       |o|c1  |o|p1  |o|p3
 _     | |    | |    | |
|o|c3  |o|c2  |o|p4  |o|p2
------------------------

c1/2/3 - capture jacks (3rd is line)
p1/2/3/4 - playback jacks (4th is line)

2 channel audio (stereo):
0 (left):  p1/c1 left
1 (right): p1/c1 right

4 channel audio:
0: p1/c1 left
1: p2/c2 left
2: p1/c1 right
3: p2/c2 right

6 channel audio
0: p1/c1 left
1: p2/c2 left
2: p3/c3 left
3: p1/c1 right
4: p2/c2 right
5: p3/c3 right

8 channel audio
0: p1/c1 left
1: p2/c2 left
2: p3/c3 left
3: p4 left
4: p1/c1 right
5: p2/c2 right
6: p3/c3 right
7: p4 right

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2020-07-17 10:20:47 +03:00
..
boot arm64: dts: ti: j721e-common-proc-board: Analog audio support 2020-07-17 10:20:47 +03:00
configs ARM: defconfig updates fopr 5.8 2020-06-04 19:54:15 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-06-01 12:00:10 -07:00
include MIPS: 2020-06-12 11:05:52 -07:00
kernel arm64 merge window fixes for -rc1 2020-06-11 12:53:23 -07:00
kvm Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
lib Merge branch 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux 2020-06-10 14:46:54 -07:00
mm mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
net Merge branch 'for-next/bti' into for-next/core 2020-05-28 18:00:51 +01:00
xen arm64: xen: Use modern annotations for assembly functions 2020-01-09 16:09:42 +00:00
Kbuild
Kconfig Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
Kconfig.debug arm64: mm: use ARCH_HAS_DEBUG_WX instead of arch defined 2020-06-03 20:09:50 -07:00
Kconfig.platforms This time around we have 4 lines of diff in the core framework, removing a 2020-06-10 11:42:19 -07:00
Makefile Kbuild updates for v5.8 2020-06-06 12:00:25 -07:00